Outsole shoe sewing machine



June 1935- Q F. ASH-WORTH 2,003,526

OUTSOLE SHOE SEWING MACHINE Filed Feb. 27. 1934 2 Sheets-Sheet l 6'2 4&-52

June 4, 1935.

F. ASHWORTH OUTSOLE SHOE SEWING MACHINE Filed Feb. 27, 1934 2Sheets-Sheet 2 Patented June 4, 1935 PATENT OFF-ICE 'zgo'oas zs V rOUTSOLE SHOEESEWINGMACHINE' Fred Ashworth, Wenham, Mass assignor toUnited 'Sh'o'e Machinery Corporation, Paterson, J., acorporationof NewJersey V ApplicatiomFebruary 27, 1934, Serial'No. 713,083 4" Claims.(o1. 112-51) The present inventionrelates'to curved hook needle shoemachines, and more particularly to means for adjustablyz positioning agage to: guide theline of the seam at a uniform. distance from the edgeof the'work. :In the illustrated embodiment, theinvention is applied toa sewing machine similar to that more fully de-' scribed: in the patentto Ashworth N0. 1,169,909, granted February 1, 1916.

The machineof the patentcomprises a-curved hook needle, a curved awl, awork support, a presser foot, and upwardly extending framearms forsupporting theneedle and awl. To guide the Work, an edge gage is movablyarranged between the presserifoot andthe frame in the restricted spacelimited by the path of movement of the needle and awl. The edge gageis'bent'rearwardly to'increase the spacewhichmay be occupied in properlypresenting the workto" the machine, and. is fixed to the upper end'rof avertical carrier having a pivotal mounting arranged aconsiderableidistance 1 below the point .of operation of 'the needle andawl to clear the arms of the frame-and otherparts of the machine.

Toadj'ust the ed'gegage of the patented ma chine iandhold' it in fix'edposition relatively to the :work support, theed'ge gage carrier. isoperated itransversely of the direction offeed by mechanism acting onthe carrier at the. level of the. pivotal mounting tolswing :the carrierabout the mounting. The vertical distance in the machinebetween the worksupport and a:suitable space where a pivotal mounting for the carriermay be located without interfering with other parts is such thatconsiderable flexure of the carrier may take place, due to its necessarylength. Proper rigidity of the edge gage carrier in the machine referredto is thus made difficult.

The object of the present invention is to simplify and improve the meansfor adjusting the edge gage of a sewing machine of the type referred to,so that the edge gage will be held rigidly in any desired work guidingposition. A feature of the present invention contemplates the provisionin a sewing machine having a curved hook needle, a curved awl, upwardlyand forwardly extending frame arms for supporting the needle and awl, anedge gage and an edge gage carrier pivoted on the machine below thepoint of operation of the needle and awl, of an adjustable deviceengaging the upper end of the carrier to resist flexure of the carrier,and a bracket on the adjusting device having a projection engaging oneof the frame arms to rigidly brace the adjustable device againstpressure of the carrier.

Other features of the invention consist in novel constructions,arrangements and combinations of parts hereinafter described andclaimed. :5

In the drawings, Fig. l is a view in side elevation of a portion of themachine embodyingthe features of the present invention; Fig. 2-is asectional view, taken along the line 2'-2 of Fig. 1; Fig. 3 is a view infront elevation of certain parts 10. of the machine illustrated in Fig.1; and Fig. 4 is a detail view on an enlarged scale of the edge gage andtheadjusting devices of the machine.

The machine illustrated in the drawings is substantially the same asthe'outsole shoe sewing I5 machine described more fully in the patentabove referred to. The machine is provided with-a curvedhook needlelll,a curved awl l2,=a work support I4, a presser foot- IS, a looper 18,an. edge gage 20, andother stitch forming and work sup- 20 portingdevices. The needle and awl are secured to operating segments pivotallymountedon a pair of arms, one of which is illustrated at 22 extendingupwardly and forwardlyfrom the machineframe. The work is fedthrough thema- 25. chine by the awl while in engagement with the work, theawlsegment being mounted on a reciprocable' stud slidably mounted intheframe arms 22. 7 V

As in the machine of theAshworth patent, the 30 edge gageextendssubstantially in a horizontal direction'betweenthe work supportindicated in the drawings of the present application at M and anarm 22,and is mounted on a vertical carrier 25 pivoted at its lower end on astud 26 below the point of operation of the needle and awl. Adjustablemechanism is connected to the carrier close to the pivot 26, which isarranged to be actuated in changing the position of the edge gagerelatively to the work support transversely of the line of work feed.Due to the length of the carrier, pressure of the work may cause thecarrier to yield, thereby permitting the line of stitching to bedisplaced relatively to the edge of the work.

In the present form of the invention, the edge gage carrier 25 isrigidly supported near its free upper end by means of a rotatable cam 28engaging the rearward side of a laterally extending portion of thecarrier. The cam 28 is fixed to the upper end of a vertical shaft 30rotatably mounted in a bearing bracket 3| secured at its lower end bymeans of screws 32 to a fixed part of the machine frame. When the shaft30 is rotated, the cam 28 acts to move the edge gage forwardly or permitit to move rearwardly to the desired position.

To strengthen the bracket 3| against thrust of the edge gage carrier, ablock 34 is mounted on the bracket 3| having a bracing projection 36extending into engagement with the front surface of the frame arm 22 ata point close to the point of engagement of the cam 28 with the carrier.The block 34 may be shifted. vertically relatively to the bracket 3!, sothat the projection 36 will positively engage the frame arm 22. Theblock 34 is secured in proper adjusted position by'a screw 38 passingthrough a slotted wing formed 1 on the block and into a threadedopeningin the bracket 3|. I To rotate the cam 23 thelower end of theshaft 30 is provided with a pinion 4H meshing with a gear segment 42secured to the upper end of a shaft 44. The shaft 44 is rotatablymounted in a portion 46 of the machine frame, and to the lower end ofthe shaft is connected an' arm 48 provided with set screws 50 forlimiting the rotary movement of the shaft 46. The set screws 50 arepositioned to engage downwardly extending lugs 52formed on the frameportion 46. To operate the arm 48, the outer end of the arm carries avertically arranged handle 54 located in substantiallythe same positionas the edge gage adjusting handle of the patented machine.

With the construction illustrated, an extremely rigid reinforcement isprovided for the edge gage, the adjusting device acting within therestricted space between the edge gage and a fi'ame 'arm 22 as closelyas is convenient to the upper end of the edge gage carrier. Adjustmentof the edge 'gage position is provided by simply rotating the shaft 30.The edge gage is held in firm engagement with the cam 28 by a spring 56stretched between pins 58 on the edge gage and the bracket 3|,respectively. The cam is formed with a sufliciently small diameter so asnot to affect the operation of the neighboring parts, and otheradvantages result which will be readily understood by those skilled inthe art.

Having thus described my invention, what is claimed is: Y

1. An outsole shoe sewing machine having, in combination, a worksupport, a curved needle, a curved awl, forwardly and upwardly extendingframe arms at the rear of the work support in which the needle and awlare mounted, an edge gage, a carrier therefor pivotally mounted belowthe work support to move transversely of the direction of feed, anadjusting device engaging the carrier adjacent its upper end arranged toresist the backward thrust of the work on the edge gage, and a bracketin which said device is mounted provided with a bracing projectionengaging one of said frame arms.

2. An outsole shoe sewing machine having, in combination, a worksupport, a curved needle, a curved awl, forwardly and upwardly extendingframe arms at the rear of the work support in which the needle and awlare mounted, an edge gage, a carrier therefor pivotally mounted belowthe work support to move transversely of the direction of feed, anadjusting cam engaging the carrier adjacent its upper end arranged toresist the backward thrust of the work on the edge gage, a rotatableshaft carrying the cam, and a bracket in which the shaft is mounted,provided with a bracing projection engaging one of said frame arms.

3. An outsole shoe sewing machine having, in combination, a worksupport, a curved needle, a curved awl,'forwardly and upwardly extendingframe arms at the rear of the work support in which the needle and awlare mounted, an edge gage, a carrier therefor pivotally mounted belowthe work support to move transversely of the direction of feed, anadjusting device engaging the carrier adjacent its upper end arranged toresist the backward thrust of the work on the edge gage, a bracket inwhich said device is mounted, and a block provided with a bracingprojection adjustably mounted on the bracket to permit it to bepositioned in engagement with one of said frame arms.

4. An outsole shoe sewing machine having, in combination, a worksupport, a curved needle, a curved awl, forwardly and upwardly extendingframe arms at the rear of the work support in which the needle and awlare mounted, an edge gage, a carrier therefor pivotally mounted belowthe work support to move transversely of the direction of feed, anadjusting cam engaging the carrier adjacent its upper end arranged toresist the backward thrust of the work on the edge gage, a verticallyarranged rotatable shaft carrying the cam, a bracket in which the shaftis mounted secured at its lower end to the main frame and extendingupwardly at the rear of the edge gage carrier, and a block provided witha bracing projection mounted on said bracket so as to be capable ofvertical adjustment to position it in engagement with one of said framearms.

FRED ASHWORTH.

